Contract with Customer, Asset, Cumulative Catch-up Adjustment to Revenue

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- Definition

Revenue, Performance Obligation Satisfied At A Point In Time, Percentage

+ References

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- Definition

Amount of accumulated impairment loss for asset recognized from cost incurred to obtain or fulfill contract with customer.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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REVENUE - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
REVENUE - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Sep. 30, 2020
Concentration Risk [Line Items]
Net favorable (unfavorable) catch-up adjustments to income from operations	$ 1,423	$ 2,188	$ 3,220	$ 422
Accumulated estimated costs to complete loss contracts	$ 8,500		$ 8,500		$ 10,800
Customer Concentration Risk \| CPP and HBP
Concentration Risk [Line Items]
Percentage of performance obligations recognized at a point in time			86.00%
Revenue from Contract with Customer Benchmark \| Government Contracts Concentration Risk \| Transferred over Time
Concentration Risk [Line Items]
Concentration risk (in percentage)			14.00%